/* This file is part of * ====================================================== * * LyX, The Document Processor * * Copyright 1995 Matthias Ettrich * Copyright 1995-2001 The LyX Team. * * ====================================================== */ #include #include "lyxtext.h" #include "lyxrow.h" #include "paragraph.h" #include "gettext.h" #include "bufferparams.h" #include "buffer.h" #include "debug.h" #include "intl.h" #include "lyxrc.h" #include "encoding.h" #include "frontends/LyXView.h" #include "frontends/Painter.h" #include "frontends/font_metrics.h" #include "frontends/screen.h" #include "frontends/WorkArea.h" #include "bufferview_funcs.h" #include "BufferView.h" #include "language.h" #include "ParagraphParameters.h" #include "undo_funcs.h" #include "WordLangTuple.h" #include "paragraph_funcs.h" #include "rowpainter.h" #include "insets/insettext.h" #include "support/textutils.h" #include "support/LAssert.h" #include "support/lstrings.h" #include using std::max; using std::min; using std::endl; using std::pair; using lyx::pos_type; /// top, right, bottom pixel margin extern int const PAPER_MARGIN = 20; /// margin for changebar extern int const CHANGEBAR_MARGIN = 10; /// left margin extern int const LEFT_MARGIN = PAPER_MARGIN + CHANGEBAR_MARGIN; extern int bibitemMaxWidth(BufferView *, LyXFont const &); BufferView * LyXText::bv() { lyx::Assert(bv_owner != 0); return bv_owner; } BufferView * LyXText::bv() const { lyx::Assert(bv_owner != 0); return bv_owner; } int LyXText::top_y() const { if (!anchor_row_) return 0; int y = 0; for (Row * row = firstRow(); row && row != anchor_row_; row = row->next()) { y += row->height(); } return y + anchor_row_offset_; } void LyXText::top_y(int newy) { if (!firstRow()) return; lyxerr[Debug::GUI] << "setting top y = " << newy << endl; int y = newy; Row * row = getRowNearY(y); if (row == anchor_row_ && anchor_row_offset_ == newy - y) { lyxerr[Debug::GUI] << "top_y to same value, skipping update" << endl; return; } anchor_row_ = row; anchor_row_offset_ = newy - y; lyxerr[Debug::GUI] << "changing reference to row: " << anchor_row_ << " offset: " << anchor_row_offset_ << endl; postPaint(0); } void LyXText::anchor_row(Row * row) { int old_y = top_y(); anchor_row_offset_ = 0; anchor_row_ = row; anchor_row_offset_ = old_y - top_y(); lyxerr[Debug::GUI] << "anchor_row(): changing reference to row: " << anchor_row_ << " offset: " << anchor_row_offset_ << endl; } int LyXText::workWidth() const { if (inset_owner) { // FIXME: pass (const ?) ref return inset_owner->textWidth(bv()); } return bv()->workWidth(); } int LyXText::workWidth(Inset * inset) const { Paragraph * par = inset->parOwner(); lyx::Assert(par); pos_type pos = par->getPositionOfInset(inset); lyx::Assert(pos != -1); LyXLayout_ptr const & layout = par->layout(); if (layout->margintype != MARGIN_RIGHT_ADDRESS_BOX) { // Optimization here: in most cases, the real row is // not needed, but only the par/pos values. So we just // construct a dummy row for leftMargin. (JMarc) Row dummyrow; dummyrow.par(par); dummyrow.pos(pos); return workWidth() - leftMargin(&dummyrow); } else { int dummy_y; Row * row = getRow(par, pos, dummy_y); Row * frow = row; while (frow->previous() && frow->par() == frow->previous()->par()) frow = frow->previous(); // FIXME: I don't understand this code - jbl unsigned int maxw = 0; while (!frow->isParEnd()) { if ((frow != row) && (maxw < frow->width())) maxw = frow->width(); frow = frow->next(); } if (maxw) return maxw; } return workWidth(); } int LyXText::getRealCursorX() const { int x = cursor.x(); if (the_locking_inset && (the_locking_inset->getLyXText(bv())!= this)) x = the_locking_inset->getLyXText(bv())->getRealCursorX(); return x; } unsigned char LyXText::transformChar(unsigned char c, Paragraph * par, pos_type pos) const { if (!Encodings::is_arabic(c)) if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c)) return c + (0xb0 - '0'); else return c; unsigned char const prev_char = pos > 0 ? par->getChar(pos-1) : ' '; unsigned char next_char = ' '; for (pos_type i = pos+1; i < par->size(); ++i) if (!Encodings::IsComposeChar_arabic(par->getChar(i))) { next_char = par->getChar(i); break; } if (Encodings::is_arabic(next_char)) { if (Encodings::is_arabic(prev_char) && !Encodings::is_arabic_special(prev_char)) return Encodings::TransformChar(c, Encodings::FORM_MEDIAL); else return Encodings::TransformChar(c, Encodings::FORM_INITIAL); } else { if (Encodings::is_arabic(prev_char) && !Encodings::is_arabic_special(prev_char)) return Encodings::TransformChar(c, Encodings::FORM_FINAL); else return Encodings::TransformChar(c, Encodings::FORM_ISOLATED); } } // This is the comments that some of the warnings below refers to. // There are some issues in this file and I don't think they are // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that // this is a problem that has been here almost from day one and that a // larger userbase with differenct access patters triggers the bad // behaviour. (segfaults.) What I think happen is: In several places // we store the paragraph in the current cursor and then moves the // cursor. This movement of the cursor will delete paragraph at the // old position if it is now empty. This will make the temporary // pointer to the old cursor paragraph invalid and dangerous to use. // And is some cases this will trigger a segfault. I have marked some // of the cases where this happens with a warning, but I am sure there // are others in this file and in text2.C. There is also a note in // Delete() that you should read. In Delete I store the paragraph->id // instead of a pointer to the paragraph. I am pretty sure this faulty // use of temporary pointers to paragraphs that might have gotten // invalidated (through a cursor movement) before they are used, are // the cause of the strange crashes we get reported often. // // It is very tiresom to change this code, especially when it is as // hard to read as it is. Help to fix all the cases where this is done // would be greately appreciated. // // Lgb int LyXText::singleWidth(Paragraph * par, pos_type pos) const { if (pos >= par->size()) return 0; char const c = par->getChar(pos); return singleWidth(par, pos, c); } int LyXText::singleWidth(Paragraph * par, pos_type pos, char c) const { if (pos >= par->size()) return 0; LyXFont const font = getFont(bv()->buffer(), par, pos); // The most common case is handled first (Asger) if (IsPrintable(c)) { if (font.language()->RightToLeft()) { if (font.language()->lang() == "arabic" && (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 || lyxrc.font_norm_type == LyXRC::ISO_10646_1)) { if (Encodings::IsComposeChar_arabic(c)) return 0; else c = transformChar(c, par, pos); } else if (font.language()->lang() == "hebrew" && Encodings::IsComposeChar_hebrew(c)) return 0; } return font_metrics::width(c, font); } if (c == Paragraph::META_INSET) { Inset * tmpinset = par->getInset(pos); if (tmpinset) { if (tmpinset->lyxCode() == Inset::HFILL_CODE) { // Because of the representation as vertical lines return 3; } #if 1 #warning inset->update FIXME // this IS needed otherwise on initialitation we don't get the fill // of the row right (ONLY on initialization if we read a file!) // should be changed! (Jug 20011204) tmpinset->update(bv()); #endif return tmpinset->width(bv(), font); } return 0; } if (IsSeparatorChar(c)) c = ' '; return font_metrics::width(c, font); } lyx::pos_type LyXText::log2vis(lyx::pos_type pos) const { if (bidi_start == -1) return pos; else return log2vis_list[pos-bidi_start]; } lyx::pos_type LyXText::vis2log(lyx::pos_type pos) const { if (bidi_start == -1) return pos; else return vis2log_list[pos-bidi_start]; } lyx::pos_type LyXText::bidi_level(lyx::pos_type pos) const { if (bidi_start == -1) return 0; else return bidi_levels[pos-bidi_start]; } bool LyXText::bidi_InRange(lyx::pos_type pos) const { return bidi_start == -1 || (bidi_start <= pos && pos <= bidi_end); } void LyXText::computeBidiTables(Buffer const * buf, Row * row) const { bidi_same_direction = true; if (!lyxrc.rtl_support) { bidi_start = -1; return; } Inset * inset = row->par()->inInset(); if (inset && inset->owner() && inset->owner()->lyxCode() == Inset::ERT_CODE) { bidi_start = -1; return; } bidi_start = row->pos(); bidi_end = row->lastPrintablePos(); if (bidi_start > bidi_end) { bidi_start = -1; return; } if (bidi_end + 2 - bidi_start > static_cast(log2vis_list.size())) { pos_type new_size = (bidi_end + 2 - bidi_start < 500) ? 500 : 2 * (bidi_end + 2 - bidi_start); log2vis_list.resize(new_size); vis2log_list.resize(new_size); bidi_levels.resize(new_size); } vis2log_list[bidi_end + 1 - bidi_start] = -1; log2vis_list[bidi_end + 1 - bidi_start] = -1; pos_type stack[2]; bool const rtl_par = row->par()->isRightToLeftPar(buf->params); int level = 0; bool rtl = false; bool rtl0 = false; pos_type const body_pos = row->par()->beginningOfBody(); for (pos_type lpos = bidi_start; lpos <= bidi_end; ++lpos) { bool is_space = row->par()->isLineSeparator(lpos); pos_type const pos = (is_space && lpos + 1 <= bidi_end && !row->par()->isLineSeparator(lpos + 1) && !row->par()->isNewline(lpos + 1)) ? lpos + 1 : lpos; LyXFont font = row->par()->getFontSettings(buf->params, pos); if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() && font.number() == LyXFont::ON && row->par()->getFontSettings(buf->params, lpos - 1).number() == LyXFont::ON) { font = row->par()->getFontSettings(buf->params, lpos); is_space = false; } bool new_rtl = font.isVisibleRightToLeft(); bool new_rtl0 = font.isRightToLeft(); int new_level; if (lpos == body_pos - 1 && row->pos() < body_pos - 1 && is_space) { new_level = (rtl_par) ? 1 : 0; new_rtl = new_rtl0 = rtl_par; } else if (new_rtl0) new_level = (new_rtl) ? 1 : 2; else new_level = (rtl_par) ? 2 : 0; if (is_space && new_level >= level) { new_level = level; new_rtl = rtl; new_rtl0 = rtl0; } int new_level2 = new_level; if (level == new_level && rtl0 != new_rtl0) { --new_level2; log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1; } else if (level < new_level) { log2vis_list[lpos - bidi_start] = (rtl) ? -1 : 1; if (new_level > rtl_par) bidi_same_direction = false; } else log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1; rtl = new_rtl; rtl0 = new_rtl0; bidi_levels[lpos - bidi_start] = new_level; while (level > new_level2) { pos_type old_lpos = stack[--level]; int delta = lpos - old_lpos - 1; if (level % 2) delta = -delta; log2vis_list[lpos - bidi_start] += delta; log2vis_list[old_lpos - bidi_start] += delta; } while (level < new_level) stack[level++] = lpos; } while (level > 0) { pos_type const old_lpos = stack[--level]; int delta = bidi_end - old_lpos; if (level % 2) delta = -delta; log2vis_list[old_lpos - bidi_start] += delta; } pos_type vpos = bidi_start - 1; for (pos_type lpos = bidi_start; lpos <= bidi_end; ++lpos) { vpos += log2vis_list[lpos - bidi_start]; vis2log_list[vpos - bidi_start] = lpos; log2vis_list[lpos - bidi_start] = vpos; } } // This method requires a previous call to ComputeBidiTables() bool LyXText::isBoundary(Buffer const * buf, Paragraph * par, pos_type pos) const { if (!lyxrc.rtl_support || pos == 0) return false; if (!bidi_InRange(pos - 1)) { /// This can happen if pos is the first char of a row. /// Returning false in this case is incorrect! return false; } bool const rtl = bidi_level(pos - 1) % 2; bool const rtl2 = bidi_InRange(pos) ? bidi_level(pos) % 2 : par->isRightToLeftPar(buf->params); return rtl != rtl2; } bool LyXText::isBoundary(Buffer const * buf, Paragraph * par, pos_type pos, LyXFont const & font) const { if (!lyxrc.rtl_support) return false; // This is just for speedup bool const rtl = font.isVisibleRightToLeft(); bool const rtl2 = bidi_InRange(pos) ? bidi_level(pos) % 2 : par->isRightToLeftPar(buf->params); return rtl != rtl2; } int LyXText::leftMargin(Row const * row) const { Inset * ins; if (row->pos() < row->par()->size()) if ((row->par()->getChar(row->pos()) == Paragraph::META_INSET) && (ins = row->par()->getInset(row->pos())) && (ins->needFullRow() || ins->display())) return LEFT_MARGIN; LyXTextClass const & tclass = bv()->buffer()->params.getLyXTextClass(); LyXLayout_ptr const & layout = row->par()->layout(); string parindent = layout->parindent; int x = LEFT_MARGIN; x += font_metrics::signedWidth(tclass.leftmargin(), tclass.defaultfont()); // this is the way, LyX handles the LaTeX-Environments. // I have had this idea very late, so it seems to be a // later added hack and this is true if (!row->par()->getDepth()) { if (row->par()->layout() == tclass.defaultLayout()) { // find the previous same level paragraph if (row->par()->previous()) { Paragraph * newpar = row->par() ->depthHook(row->par()->getDepth()); if (newpar && newpar->layout()->nextnoindent) parindent.erase(); } } } else { // find the next level paragraph Paragraph * newpar = row->par()->outerHook(); // make a corresponding row. Needed to call LeftMargin() // check wether it is a sufficent paragraph if (newpar && newpar->layout()->isEnvironment()) { Row dummyrow; dummyrow.par(newpar); dummyrow.pos(newpar->size()); x = leftMargin(&dummyrow); } else { // this is no longer an error, because this function // is used to clear impossible depths after changing // a layout. Since there is always a redo, // LeftMargin() is always called row->par()->params().depth(0); } if (newpar && row->par()->layout() == tclass.defaultLayout()) { if (newpar->params().noindent()) parindent.erase(); else { parindent = newpar->layout()->parindent; } } } LyXFont const labelfont = getLabelFont(bv()->buffer(), row->par()); switch (layout->margintype) { case MARGIN_DYNAMIC: if (!layout->leftmargin.empty()) { x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()); } if (!row->par()->getLabelstring().empty()) { x += font_metrics::signedWidth(layout->labelindent, labelfont); x += font_metrics::width(row->par()->getLabelstring(), labelfont); x += font_metrics::width(layout->labelsep, labelfont); } break; case MARGIN_MANUAL: x += font_metrics::signedWidth(layout->labelindent, labelfont); // The width of an empty par, even with manual label, should be 0 if (!row->par()->empty() && row->pos() >= row->par()->beginningOfBody()) { if (!row->par()->getLabelWidthString().empty()) { x += font_metrics::width(row->par()->getLabelWidthString(), labelfont); x += font_metrics::width(layout->labelsep, labelfont); } } break; case MARGIN_STATIC: x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()) * 4 / (row->par()->getDepth() + 4); break; case MARGIN_FIRST_DYNAMIC: if (layout->labeltype == LABEL_MANUAL) { if (row->pos() >= row->par()->beginningOfBody()) { x += font_metrics::signedWidth(layout->leftmargin, labelfont); } else { x += font_metrics::signedWidth(layout->labelindent, labelfont); } } else if (row->pos() // Special case to fix problems with // theorems (JMarc) || (layout->labeltype == LABEL_STATIC && layout->latextype == LATEX_ENVIRONMENT && ! row->par()->isFirstInSequence())) { x += font_metrics::signedWidth(layout->leftmargin, labelfont); } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT && layout->labeltype != LABEL_BIBLIO && layout->labeltype != LABEL_CENTERED_TOP_ENVIRONMENT) { x += font_metrics::signedWidth(layout->labelindent, labelfont); x += font_metrics::width(layout->labelsep, labelfont); x += font_metrics::width(row->par()->getLabelstring(), labelfont); } break; case MARGIN_RIGHT_ADDRESS_BOX: { // ok, a terrible hack. The left margin depends on the widest // row in this paragraph. Do not care about footnotes, they // are *NOT* allowed in the LaTeX realisation of this layout. // find the first row of this paragraph Row const * tmprow = row; while (tmprow->previous() && tmprow->previous()->par() == row->par()) tmprow = tmprow->previous(); int minfill = tmprow->fill(); while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); if (tmprow->fill() < minfill) minfill = tmprow->fill(); } x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()); x += minfill; } break; } if ((workWidth() > 0) && !row->par()->params().leftIndent().zero()) { LyXLength const len = row->par()->params().leftIndent(); int const tw = inset_owner ? inset_owner->latexTextWidth(bv()) : workWidth(); x += len.inPixels(tw); } LyXAlignment align; // wrong type if (row->par()->params().align() == LYX_ALIGN_LAYOUT) align = layout->align; else align = row->par()->params().align(); // set the correct parindent if (row->pos() == 0) { if ((layout->labeltype == LABEL_NO_LABEL || layout->labeltype == LABEL_TOP_ENVIRONMENT || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT || (layout->labeltype == LABEL_STATIC && layout->latextype == LATEX_ENVIRONMENT && ! row->par()->isFirstInSequence())) && align == LYX_ALIGN_BLOCK && !row->par()->params().noindent() // in tabulars and ert paragraphs are never indented! && (!row->par()->inInset() || !row->par()->inInset()->owner() || (row->par()->inInset()->owner()->lyxCode() != Inset::TABULAR_CODE && row->par()->inInset()->owner()->lyxCode() != Inset::ERT_CODE)) && (row->par()->layout() != tclass.defaultLayout() || bv()->buffer()->params.paragraph_separation == BufferParams::PARSEP_INDENT)) { x += font_metrics::signedWidth(parindent, tclass.defaultfont()); } else if (layout->labeltype == LABEL_BIBLIO) { // ale970405 Right width for bibitems x += bibitemMaxWidth(bv(), tclass.defaultfont()); } } return x; } int LyXText::rightMargin(Buffer const & buf, Row const & row) const { Inset * ins; if (row.pos() < row.par()->size()) if ((row.par()->getChar(row.pos()) == Paragraph::META_INSET) && (ins=row.par()->getInset(row.pos())) && (ins->needFullRow() || ins->display())) return PAPER_MARGIN; LyXTextClass const & tclass = buf.params.getLyXTextClass(); LyXLayout_ptr const & layout = row.par()->layout(); int x = PAPER_MARGIN + font_metrics::signedWidth(tclass.rightmargin(), tclass.defaultfont()); // this is the way, LyX handles the LaTeX-Environments. // I have had this idea very late, so it seems to be a // later added hack and this is true if (row.par()->getDepth()) { // find the next level paragraph Paragraph const * newpar = row.par(); do { newpar = newpar->previous(); } while (newpar && newpar->getDepth() >= row.par()->getDepth()); // make a corresponding row. Needed to call LeftMargin() // check wether it is a sufficent paragraph if (newpar && newpar->layout()->isEnvironment()) { Row dummyrow; dummyrow.par(const_cast(newpar)); dummyrow.pos(0); x = rightMargin(buf, dummyrow); } else { // this is no longer an error, because this function // is used to clear impossible depths after changing // a layout. Since there is always a redo, // LeftMargin() is always called row.par()->params().depth(0); } } //lyxerr << "rightmargin: " << layout->rightmargin << endl; x += font_metrics::signedWidth(layout->rightmargin, tclass.defaultfont()) * 4 / (row.par()->getDepth() + 4); return x; } int LyXText::labelEnd(Row const & row) const { if (row.par()->layout()->margintype == MARGIN_MANUAL) { Row tmprow = row; tmprow.pos(row.par()->size()); // return the beginning of the body return leftMargin(&tmprow); } // LabelEnd is only needed if the layout // fills a flushleft label. return 0; } namespace { // this needs special handling - only newlines count as a break point pos_type addressBreakPoint(pos_type i, Paragraph * par) { for (; i < par->size(); ++i) { if (par->isNewline(i)) return i; } return par->size(); } }; pos_type LyXText::rowBreakPoint(Row const & row) const { Paragraph * par = row.par(); // maximum pixel width of a row. int width = workWidth() - rightMargin(*bv()->buffer(), row); // inset->textWidth() returns -1 via workWidth(), // but why ? if (width < 0) return par->size(); LyXLayout_ptr const & layout = par->layout(); if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) return addressBreakPoint(row.pos(), par); pos_type const pos = row.pos(); pos_type const body_pos = par->beginningOfBody(); pos_type const last = par->size(); pos_type point = last; if (pos == last) return last; // Now we iterate through until we reach the right margin // or the end of the par, then choose the possible break // nearest that. int const left = leftMargin(&row); int x = left; // pixel width since last breakpoint int chunkwidth = 0; pos_type i = pos; for (; i < last; ++i) { if (par->isNewline(i)) { point = i; break; } char const c = par->getChar(i); int thiswidth = singleWidth(par, i, c); // add the auto-hfill from label end to the body if (body_pos && i == body_pos) { thiswidth += font_metrics::width(layout->labelsep, getLabelFont(bv()->buffer(), par)); if (par->isLineSeparator(i - 1)) thiswidth -= singleWidth(par, i - 1); int left_margin = labelEnd(row); if (thiswidth < left_margin) thiswidth = left_margin; } x += thiswidth; chunkwidth += thiswidth; Inset * in = par->isInset(i) ? par->getInset(i) : 0; bool fullrow = (in && (in->display() || in->needFullRow())); // break before a character that will fall off // the right of the row if (x >= width) { // if no break before or we are at an inset // that will take up a row, break here if (point == last || fullrow || chunkwidth >= (width - left)) { if (pos < i) point = i - 1; else point = i; } break; } if (!in || in->isChar()) { // some insets are line separators too if (par->isLineSeparator(i)) { point = i; chunkwidth = 0; } continue; } if (!fullrow) continue; // full row insets start at a new row if (i == pos) { if (pos < last - 1) { point = i; if (par->isLineSeparator(i + 1)) ++point; } else { // to avoid extra rows point = last; } } else { point = i - 1; } break; } if (point == last && x >= width) { // didn't find one, break at the point we reached the edge point = i; } else if (i == last && x < width) { // found one, but we fell off the end of the par, so prefer // that. point = last; } // manual labels cannot be broken in LaTeX if (body_pos && point < body_pos) point = body_pos - 1; return point; } // returns the minimum space a row needs on the screen in pixel int LyXText::fill(Row & row, int paper_width) const { if (paper_width < 0) return 0; int w; // get the pure distance pos_type const last = row.lastPrintablePos(); // special handling of the right address boxes if (row.par()->layout()->margintype == MARGIN_RIGHT_ADDRESS_BOX) { int const tmpfill = row.fill(); row.fill(0); // the minfill in MarginLeft() w = leftMargin(&row); row.fill(tmpfill); } else w = leftMargin(&row); Paragraph * par = row.par(); LyXLayout_ptr const & layout = par->layout(); pos_type const body_pos = par->beginningOfBody(); pos_type i = row.pos(); while (i <= last) { if (body_pos > 0 && i == body_pos) { w += font_metrics::width(layout->labelsep, getLabelFont(bv()->buffer(), par)); if (par->isLineSeparator(i - 1)) w -= singleWidth(par, i - 1); int left_margin = labelEnd(row); if (w < left_margin) w = left_margin; } w += singleWidth(par, i); ++i; } if (body_pos > 0 && body_pos > last) { w += font_metrics::width(layout->labelsep, getLabelFont(bv()->buffer(), par)); if (last >= 0 && par->isLineSeparator(last)) w -= singleWidth(par, last); int const left_margin = labelEnd(row); if (w < left_margin) w = left_margin; } int const fill = paper_width - w - rightMargin(*bv()->buffer(), row); return fill; } // returns the minimum space a manual label needs on the screen in pixel int LyXText::labelFill(Row const & row) const { pos_type last = row.par()->beginningOfBody(); lyx::Assert(last > 0); // -1 because a label ends either with a space that is in the label, // or with the beginning of a footnote that is outside the label. --last; // a separator at this end does not count if (row.par()->isLineSeparator(last)) --last; int w = 0; pos_type i = row.pos(); while (i <= last) { w += singleWidth(row.par(), i); ++i; } int fill = 0; string const & labwidstr = row.par()->params().labelWidthString(); if (!labwidstr.empty()) { LyXFont const labfont = getLabelFont(bv()->buffer(), row.par()); int const labwidth = font_metrics::width(labwidstr, labfont); fill = max(labwidth - w, 0); } return fill; } LColor::color LyXText::backgroundColor() const { if (inset_owner) return inset_owner->backgroundColor(); else return LColor::background; } void LyXText::setHeightOfRow(Row * row) { // get the maximum ascent and the maximum descent int asc = 0; int desc = 0; float layoutasc = 0; float layoutdesc = 0; float tmptop = 0; LyXFont tmpfont; Inset * tmpinset = 0; // ok , let us initialize the maxasc and maxdesc value. // This depends in LaTeX of the font of the last character // in the paragraph. The hack below is necessary because // of the possibility of open footnotes // Correction: only the fontsize count. The other properties // are taken from the layoutfont. Nicer on the screen :) Paragraph * par = row->par(); Paragraph * firstpar = row->par(); LyXLayout_ptr const & layout = firstpar->layout(); // as max get the first character of this row then it can increase but not // decrease the height. Just some point to start with so we don't have to // do the assignment below too often. LyXFont font = getFont(bv()->buffer(), par, row->pos()); LyXFont::FONT_SIZE const tmpsize = font.size(); font = getLayoutFont(bv()->buffer(), par); LyXFont::FONT_SIZE const size = font.size(); font.setSize(tmpsize); LyXFont labelfont = getLabelFont(bv()->buffer(), par); float spacing_val = 1.0; if (!row->par()->params().spacing().isDefault()) { spacing_val = row->par()->params().spacing().getValue(); } else { spacing_val = bv()->buffer()->params.spacing.getValue(); } //lyxerr << "spacing_val = " << spacing_val << endl; int maxasc = int(font_metrics::maxAscent(font) * layout->spacing.getValue() * spacing_val); int maxdesc = int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val); pos_type const pos_end = row->lastPos(); int labeladdon = 0; int maxwidth = 0; if (!row->par()->empty()) { // Check if any insets are larger for (pos_type pos = row->pos(); pos <= pos_end; ++pos) { if (row->par()->isInset(pos)) { tmpfont = getFont(bv()->buffer(), row->par(), pos); tmpinset = row->par()->getInset(pos); if (tmpinset) { #if 1 // this is needed for deep update on initialitation #warning inset->update FIXME tmpinset->update(bv()); #endif asc = tmpinset->ascent(bv(), tmpfont); desc = tmpinset->descent(bv(), tmpfont); maxwidth += tmpinset->width(bv(), tmpfont); maxasc = max(maxasc, asc); maxdesc = max(maxdesc, desc); } } else { maxwidth += singleWidth(row->par(), pos); } } } // Check if any custom fonts are larger (Asger) // This is not completely correct, but we can live with the small, // cosmetic error for now. LyXFont::FONT_SIZE maxsize = row->par()->highestFontInRange(row->pos(), pos_end, size); if (maxsize > font.size()) { font.setSize(maxsize); asc = font_metrics::maxAscent(font); desc = font_metrics::maxDescent(font); if (asc > maxasc) maxasc = asc; if (desc > maxdesc) maxdesc = desc; } // This is nicer with box insets: ++maxasc; ++maxdesc; row->ascent_of_text(maxasc); // is it a top line? if (!row->pos() && (row->par() == firstpar)) { // some parksips VERY EASY IMPLEMENTATION if (bv()->buffer()->params.paragraph_separation == BufferParams::PARSEP_SKIP) { if (layout->isParagraph() && firstpar->getDepth() == 0 && firstpar->previous()) { maxasc += bv()->buffer()->params.getDefSkip().inPixels(*bv()); } else if (firstpar->previous() && firstpar->previous()->layout()->isParagraph() && firstpar->previous()->getDepth() == 0) { // is it right to use defskip here too? (AS) maxasc += bv()->buffer()->params.getDefSkip().inPixels(*bv()); } } // the top margin if (!row->par()->previous() && !isInInset()) maxasc += PAPER_MARGIN; // add the vertical spaces, that the user added maxasc += getLengthMarkerHeight(*bv(), firstpar->params().spaceTop()); // do not forget the DTP-lines! // there height depends on the font of the nearest character if (firstpar->params().lineTop()) maxasc += 2 * font_metrics::ascent('x', getFont(bv()->buffer(), firstpar, 0)); // and now the pagebreaks if (firstpar->params().pagebreakTop()) maxasc += 3 * defaultRowHeight(); if (firstpar->params().startOfAppendix()) maxasc += 3 * defaultRowHeight(); // This is special code for the chapter, since the label of this // layout is printed in an extra row if (layout->labeltype == LABEL_COUNTER_CHAPTER && bv()->buffer()->params.secnumdepth >= 0) { float spacing_val = 1.0; if (!row->par()->params().spacing().isDefault()) { spacing_val = row->par()->params().spacing().getValue(); } else { spacing_val = bv()->buffer()->params.spacing.getValue(); } labeladdon = int(font_metrics::maxDescent(labelfont) * layout->spacing.getValue() * spacing_val) + int(font_metrics::maxAscent(labelfont) * layout->spacing.getValue() * spacing_val); } // special code for the top label if ((layout->labeltype == LABEL_TOP_ENVIRONMENT || layout->labeltype == LABEL_BIBLIO || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) && row->par()->isFirstInSequence() && !row->par()->getLabelstring().empty()) { float spacing_val = 1.0; if (!row->par()->params().spacing().isDefault()) { spacing_val = row->par()->params().spacing().getValue(); } else { spacing_val = bv()->buffer()->params.spacing.getValue(); } labeladdon = int( (font_metrics::maxAscent(labelfont) * layout->spacing.getValue() * spacing_val) +(font_metrics::maxDescent(labelfont) * layout->spacing.getValue() * spacing_val) + layout->topsep * defaultRowHeight() + layout->labelbottomsep * defaultRowHeight()); } // and now the layout spaces, for example before and after a section, // or between the items of a itemize or enumerate environment if (!firstpar->params().pagebreakTop()) { Paragraph * prev = row->par()->previous(); if (prev) prev = row->par()->depthHook(row->par()->getDepth()); if (prev && prev->layout() == firstpar->layout() && prev->getDepth() == firstpar->getDepth() && prev->getLabelWidthString() == firstpar->getLabelWidthString()) { layoutasc = (layout->itemsep * defaultRowHeight()); } else if (row->previous()) { tmptop = layout->topsep; if (row->previous()->par()->getDepth() >= row->par()->getDepth()) tmptop -= row->previous()->par()->layout()->bottomsep; if (tmptop > 0) layoutasc = (tmptop * defaultRowHeight()); } else if (row->par()->params().lineTop()) { tmptop = layout->topsep; if (tmptop > 0) layoutasc = (tmptop * defaultRowHeight()); } prev = row->par()->outerHook(); if (prev) { maxasc += int(prev->layout()->parsep * defaultRowHeight()); } else { if (firstpar->previous() && firstpar->previous()->getDepth() == 0 && firstpar->previous()->layout() != firstpar->layout()) { // avoid parsep } else if (firstpar->previous()) { maxasc += int(layout->parsep * defaultRowHeight()); } } } } // is it a bottom line? if (row->par() == par && (!row->next() || row->next()->par() != row->par())) { // the bottom margin if (!par->next() && !isInInset()) maxdesc += PAPER_MARGIN; // add the vertical spaces, that the user added maxdesc += getLengthMarkerHeight(*bv(), firstpar->params().spaceBottom()); // do not forget the DTP-lines! // there height depends on the font of the nearest character if (firstpar->params().lineBottom()) maxdesc += 2 * font_metrics::ascent('x', getFont(bv()->buffer(), par, max(pos_type(0), par->size() - 1))); // and now the pagebreaks if (firstpar->params().pagebreakBottom()) maxdesc += 3 * defaultRowHeight(); // and now the layout spaces, for example before and after // a section, or between the items of a itemize or enumerate // environment if (!firstpar->params().pagebreakBottom() && row->par()->next()) { Paragraph * nextpar = row->par()->next(); Paragraph * comparepar = row->par(); float usual = 0; float unusual = 0; if (comparepar->getDepth() > nextpar->getDepth()) { usual = (comparepar->layout()->bottomsep * defaultRowHeight()); comparepar = comparepar->depthHook(nextpar->getDepth()); if (comparepar->layout()!= nextpar->layout() || nextpar->getLabelWidthString() != comparepar->getLabelWidthString()) { unusual = (comparepar->layout()->bottomsep * defaultRowHeight()); } if (unusual > usual) layoutdesc = unusual; else layoutdesc = usual; } else if (comparepar->getDepth() == nextpar->getDepth()) { if (comparepar->layout() != nextpar->layout() || nextpar->getLabelWidthString() != comparepar->getLabelWidthString()) layoutdesc = int(comparepar->layout()->bottomsep * defaultRowHeight()); } } } // incalculate the layout spaces maxasc += int(layoutasc * 2 / (2 + firstpar->getDepth())); maxdesc += int(layoutdesc * 2 / (2 + firstpar->getDepth())); // calculate the new height of the text height -= row->height(); row->height(maxasc + maxdesc + labeladdon); row->baseline(maxasc + labeladdon); height += row->height(); row->top_of_text(row->baseline() - font_metrics::maxAscent(font)); float x = 0; if (layout->margintype != MARGIN_RIGHT_ADDRESS_BOX) { float dummy; // this IS needed row->width(maxwidth); prepareToPrint(row, x, dummy, dummy, dummy, false); } row->width(int(maxwidth + x)); if (inset_owner) { Row * r = firstRow(); width = max(0, workWidth()); while (r) { if (r->width() > width) width = r->width(); r = r->next(); } } } // Appends the implicit specified paragraph before the specified row, // start at the implicit given position void LyXText::appendParagraph(Row * row) { pos_type const last = row->par()->size(); bool done = false; do { pos_type z = rowBreakPoint(*row); Row * tmprow = row; if (z < last) { ++z; insertRow(row, row->par(), z); row = row->next(); } else { done = true; } // Set the dimensions of the row // fixed fill setting now by calling inset->update() in // SingleWidth when needed! tmprow->fill(fill(*tmprow, workWidth())); setHeightOfRow(tmprow); } while (!done); } void LyXText::breakAgain(Row * row) { bool not_ready = true; do { pos_type z = rowBreakPoint(*row); Row * tmprow = row; if (z < row->par()->size()) { if (!row->next() || (row->next() && row->next()->par() != row->par())) { // insert a new row ++z; insertRow(row, row->par(), z); row = row->next(); } else { row = row->next(); ++z; if (row->pos() == z) not_ready = false; // the rest will not change else { row->pos(z); } } } else { // if there are some rows too much, delete them // only if you broke the whole paragraph! Row * tmprow2 = row; while (tmprow2->next() && tmprow2->next()->par() == row->par()) { tmprow2 = tmprow2->next(); } while (tmprow2 != row) { tmprow2 = tmprow2->previous(); removeRow(tmprow2->next()); } not_ready = false; } // set the dimensions of the row tmprow->fill(fill(*tmprow, workWidth())); setHeightOfRow(tmprow); } while (not_ready); } // this is just a little changed version of break again void LyXText::breakAgainOneRow(Row * row) { pos_type z = rowBreakPoint(*row); Row * tmprow = row; if (z < row->par()->size()) { if (!row->next() || (row->next() && row->next()->par() != row->par())) { // insert a new row ++z; insertRow(row, row->par(), z); row = row->next(); } else { row = row->next(); ++z; if (row->pos() != z) row->pos(z); } } else { // if there are some rows too much, delete them // only if you broke the whole paragraph! Row * tmprow2 = row; while (tmprow2->next() && tmprow2->next()->par() == row->par()) { tmprow2 = tmprow2->next(); } while (tmprow2 != row) { tmprow2 = tmprow2->previous(); removeRow(tmprow2->next()); } } // set the dimensions of the row tmprow->fill(fill(*tmprow, workWidth())); setHeightOfRow(tmprow); } void LyXText::breakParagraph(ParagraphList & paragraphs, char keep_layout) { // allow only if at start or end, or all previous is new text if (cursor.pos() && cursor.pos() != cursor.par()->size() && cursor.par()->isChangeEdited(0, cursor.pos())) return; LyXTextClass const & tclass = bv()->buffer()->params.getLyXTextClass(); LyXLayout_ptr const & layout = cursor.par()->layout(); // this is only allowed, if the current paragraph is not empty or caption // and if it has not the keepempty flag aktive if (cursor.par()->empty() && layout->labeltype != LABEL_SENSITIVE && !layout->keepempty) return; setUndo(bv(), Undo::FINISH, cursor.par(), cursor.par()->next()); // Always break behind a space // // It is better to erase the space (Dekel) if (cursor.pos() < cursor.par()->size() && cursor.par()->isLineSeparator(cursor.pos())) cursor.par()->erase(cursor.pos()); // cursor.pos(cursor.pos() + 1); // break the paragraph if (keep_layout) keep_layout = 2; else keep_layout = layout->isEnvironment(); // we need to set this before we insert the paragraph. IMO the // breakParagraph call should return a bool if it inserts the // paragraph before or behind and we should react on that one // but we can fix this in 1.3.0 (Jug 20020509) bool const isempty = (layout->keepempty && cursor.par()->empty()); ::breakParagraph(bv()->buffer()->params, paragraphs, cursor.par(), cursor.pos(), keep_layout); // well this is the caption hack since one caption is really enough if (layout->labeltype == LABEL_SENSITIVE) { if (!cursor.pos()) // set to standard-layout cursor.par()->applyLayout(tclass.defaultLayout()); else // set to standard-layout cursor.par()->next()->applyLayout(tclass.defaultLayout()); } // if the cursor is at the beginning of a row without prior newline, // move one row up! // This touches only the screen-update. Otherwise we would may have // an empty row on the screen if (cursor.pos() && !cursor.row()->par()->isNewline(cursor.row()->pos() - 1) && cursor.row()->pos() == cursor.pos()) { cursorLeft(bv()); } int y = cursor.y() - cursor.row()->baseline(); // Do not forget the special right address boxes if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) { Row * r = cursor.row(); while (r->previous() && r->previous()->par() == r->par()) { r = r->previous(); y -= r->height(); } } postPaint(y); removeParagraph(cursor.row()); // set the dimensions of the cursor row cursor.row()->fill(fill(*cursor.row(), workWidth())); setHeightOfRow(cursor.row()); #warning Trouble Point! (Lgb) // When ::breakParagraph is called from within an inset we must // ensure that the correct ParagraphList is used. Today that is not // the case and the Buffer::paragraphs is used. Not good. (Lgb) while (!cursor.par()->next()->empty() && cursor.par()->next()->isNewline(0)) cursor.par()->next()->erase(0); insertParagraph(cursor.par()->next(), cursor.row()); updateCounters(); // This check is necessary. Otherwise the new empty paragraph will // be deleted automatically. And it is more friendly for the user! if (cursor.pos() || isempty) setCursor(cursor.par()->next(), 0); else setCursor(cursor.par(), 0); if (cursor.row()->next()) breakAgain(cursor.row()->next()); need_break_row = 0; } // Just a macro to make some thing easier. void LyXText::redoParagraph() { clearSelection(); redoParagraphs(cursor, cursor.par()->next()); setCursorIntern(cursor.par(), cursor.pos()); } // insert a character, moves all the following breaks in the // same Paragraph one to the right and make a rebreak void LyXText::insertChar(char c) { setUndo(bv(), Undo::INSERT, cursor.par(), cursor.par()->next()); // When the free-spacing option is set for the current layout, // disable the double-space checking bool const freeSpacing = cursor.row()->par()->layout()->free_spacing || cursor.row()->par()->isFreeSpacing(); if (lyxrc.auto_number) { static string const number_operators = "+-/*"; static string const number_unary_operators = "+-"; static string const number_seperators = ".,:"; if (current_font.number() == LyXFont::ON) { if (!IsDigit(c) && !contains(number_operators, c) && !(contains(number_seperators, c) && cursor.pos() >= 1 && cursor.pos() < cursor.par()->size() && getFont(bv()->buffer(), cursor.par(), cursor.pos()).number() == LyXFont::ON && getFont(bv()->buffer(), cursor.par(), cursor.pos() - 1).number() == LyXFont::ON) ) number(bv()); // Set current_font.number to OFF } else if (IsDigit(c) && real_current_font.isVisibleRightToLeft()) { number(bv()); // Set current_font.number to ON if (cursor.pos() > 0) { char const c = cursor.par()->getChar(cursor.pos() - 1); if (contains(number_unary_operators, c) && (cursor.pos() == 1 || cursor.par()->isSeparator(cursor.pos() - 2) || cursor.par()->isNewline(cursor.pos() - 2)) ) { setCharFont(bv()->buffer(), cursor.par(), cursor.pos() - 1, current_font); } else if (contains(number_seperators, c) && cursor.pos() >= 2 && getFont(bv()->buffer(), cursor.par(), cursor.pos() - 2).number() == LyXFont::ON) { setCharFont(bv()->buffer(), cursor.par(), cursor.pos() - 1, current_font); } } } } // First check, if there will be two blanks together or a blank at // the beginning of a paragraph. // I decided to handle blanks like normal characters, the main // difference are the special checks when calculating the row.fill // (blank does not count at the end of a row) and the check here // The bug is triggered when we type in a description environment: // The current_font is not changed when we go from label to main text // and it should (along with realtmpfont) when we type the space. // CHECK There is a bug here! (Asger) LyXFont realtmpfont = real_current_font; LyXFont rawtmpfont = current_font; // store the current font. This is because of the use of cursor // movements. The moving cursor would refresh the current font // Get the font that is used to calculate the baselineskip pos_type const lastpos = cursor.par()->size(); LyXFont rawparfont = cursor.par()->getFontSettings(bv()->buffer()->params, lastpos - 1); bool jumped_over_space = false; if (!freeSpacing && IsLineSeparatorChar(c)) { if ((cursor.pos() > 0 && cursor.par()->isLineSeparator(cursor.pos() - 1)) || (cursor.pos() > 0 && cursor.par()->isNewline(cursor.pos() - 1)) || (cursor.pos() == 0)) { static bool sent_space_message = false; if (!sent_space_message) { if (cursor.pos() == 0) bv()->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial.")); else bv()->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial.")); sent_space_message = true; } charInserted(); return; } } // the display inset stuff if (cursor.row()->pos() < cursor.row()->par()->size() && cursor.row()->par()->isInset(cursor.row()->pos())) { Inset * inset = cursor.row()->par()->getInset(cursor.row()->pos()); if (inset && (inset->display() || inset->needFullRow())) { // force a new break cursor.row()->fill(-1); // to force a new break } } // get the cursor row fist Row * row = cursor.row(); int y = cursor.y() - row->baseline(); if (c != Paragraph::META_INSET) { // Here case LyXText::InsertInset already insertet the character cursor.par()->insertChar(cursor.pos(), c); } setCharFont(bv()->buffer(), cursor.par(), cursor.pos(), rawtmpfont); if (!jumped_over_space) { // refresh the positions Row * tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() + 1); } } // Is there a break one row above if (row->previous() && row->previous()->par() == row->par() && (cursor.par()->isLineSeparator(cursor.pos()) || cursor.par()->isNewline(cursor.pos()) || ((cursor.pos() + 1 < cursor.par()->size()) && cursor.par()->isInset(cursor.pos() + 1)) || cursor.row()->fill() == -1)) { pos_type z = rowBreakPoint(*row->previous()); if (z >= row->pos()) { row->pos(z + 1); // set the dimensions of the row above row->previous()->fill(fill( *row->previous(), workWidth())); setHeightOfRow(row->previous()); y -= row->previous()->height(); postPaint(y); breakAgainOneRow(row); current_font = rawtmpfont; real_current_font = realtmpfont; setCursor(cursor.par(), cursor.pos() + 1, false, cursor.boundary()); // cursor MUST be in row now. if (row->next() && row->next()->par() == row->par()) need_break_row = row->next(); else need_break_row = 0; // check, wether the last characters font has changed. if (cursor.pos() && cursor.pos() == cursor.par()->size() && rawparfont != rawtmpfont) redoHeightOfParagraph(); charInserted(); return; } } // recalculate the fill of the row if (row->fill() >= 0) { // needed because a newline will set fill to -1. Otherwise // we would not get a rebreak! row->fill(fill(*row, workWidth())); } if (c == Paragraph::META_INSET || row->fill() < 0) { postPaint(y); breakAgainOneRow(row); // will the cursor be in another row now? if (row->lastPos() <= cursor.pos() + 1 && row->next()) { if (row->next() && row->next()->par() == row->par()) // this should always be true row = row->next(); breakAgainOneRow(row); } current_font = rawtmpfont; real_current_font = realtmpfont; setCursor(cursor.par(), cursor.pos() + 1, false, cursor.boundary()); if (isBoundary(bv()->buffer(), cursor.par(), cursor.pos()) != cursor.boundary()) setCursor(cursor.par(), cursor.pos(), false, !cursor.boundary()); if (row->next() && row->next()->par() == row->par()) need_break_row = row->next(); else need_break_row = 0; } else { // FIXME: similar code is duplicated all over - make resetHeightOfRow int const tmpheight = row->height(); setHeightOfRow(row); if (tmpheight == row->height()) { postRowPaint(row, y); } else { postPaint(y); } current_font = rawtmpfont; real_current_font = realtmpfont; setCursor(cursor.par(), cursor.pos() + 1, false, cursor.boundary()); } // check, wether the last characters font has changed. if (cursor.pos() && cursor.pos() == cursor.par()->size() && rawparfont != rawtmpfont) { redoHeightOfParagraph(); } else { // now the special right address boxes if (cursor.par()->layout()->margintype == MARGIN_RIGHT_ADDRESS_BOX) { redoDrawingOfParagraph(cursor); } } charInserted(); } void LyXText::charInserted() { // Here we could call FinishUndo for every 20 characters inserted. // This is from my experience how emacs does it. static unsigned int counter; if (counter < 20) { ++counter; } else { finishUndo(); counter = 0; } } void LyXText::prepareToPrint(Row * row, float & x, float & fill_separator, float & fill_hfill, float & fill_label_hfill, bool bidi) const { float nlh; float ns; float w = row->fill(); fill_hfill = 0; fill_label_hfill = 0; fill_separator = 0; fill_label_hfill = 0; bool const is_rtl = row->par()->isRightToLeftPar(bv()->buffer()->params); if (is_rtl) { x = (workWidth() > 0) ? rightMargin(*bv()->buffer(), *row) : 0; } else x = (workWidth() > 0) ? leftMargin(row) : 0; // is there a manual margin with a manual label LyXLayout_ptr const & layout = row->par()->layout(); if (layout->margintype == MARGIN_MANUAL && layout->labeltype == LABEL_MANUAL) { /// We might have real hfills in the label part nlh = row->numberOfLabelHfills(); // A manual label par (e.g. List) has an auto-hfill // between the label text and the body of the // paragraph too. // But we don't want to do this auto hfill if the par // is empty. if (!row->par()->empty()) ++nlh; if (nlh && !row->par()->getLabelWidthString().empty()) { fill_label_hfill = labelFill(*row) / nlh; } } // are there any hfills in the row? float const nh = row->numberOfHfills(); if (nh) { if (w > 0) fill_hfill = w / nh; // we don't have to look at the alignment if it is ALIGN_LEFT and // if the row is already larger then the permitted width as then // we force the LEFT_ALIGN'edness! } else if (static_cast(row->width()) < workWidth()) { // is it block, flushleft or flushright? // set x how you need it int align; if (row->par()->params().align() == LYX_ALIGN_LAYOUT) { align = layout->align; } else { align = row->par()->params().align(); } // center displayed insets Inset * inset; if (row->pos() < row->par()->size() && row->par()->isInset(row->pos()) && (inset = row->par()->getInset(row->pos())) && (inset->display())) // || (inset->scroll() < 0))) align = (inset->lyxCode() == Inset::MATHMACRO_CODE) ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER; // ERT insets should always be LEFT ALIGNED on screen inset = row->par()->inInset(); if (inset && inset->owner() && inset->owner()->lyxCode() == Inset::ERT_CODE) { align = LYX_ALIGN_LEFT; } switch (align) { case LYX_ALIGN_BLOCK: ns = row->numberOfSeparators(); if (ns && row->next() && row->next()->par() == row->par() && !(row->next()->par()->isNewline(row->next()->pos() - 1)) && !(row->next()->par()->isInset(row->next()->pos()) && row->next()->par()->getInset(row->next()->pos()) && row->next()->par()->getInset(row->next()->pos())->display()) ) { fill_separator = w / ns; } else if (is_rtl) { x += w; } break; case LYX_ALIGN_RIGHT: x += w; break; case LYX_ALIGN_CENTER: x += w / 2; break; } } if (!bidi) return; computeBidiTables(bv()->buffer(), row); if (is_rtl) { pos_type body_pos = row->par()->beginningOfBody(); pos_type last = row->lastPos(); if (body_pos > 0 && (body_pos - 1 > last || !row->par()->isLineSeparator(body_pos - 1))) { x += font_metrics::width(layout->labelsep, getLabelFont(bv()->buffer(), row->par())); if (body_pos - 1 <= last) x += fill_label_hfill; } } } // important for the screen // the cursor set functions have a special mechanism. When they // realize, that you left an empty paragraph, they will delete it. // They also delete the corresponding row void LyXText::cursorRightOneWord() { // treat floats, HFills and Insets as words LyXCursor tmpcursor = cursor; // CHECK See comment on top of text.C if (tmpcursor.pos() == tmpcursor.par()->size() && tmpcursor.par()->next()) { tmpcursor.par(tmpcursor.par()->next()); tmpcursor.pos(0); } else { int steps = 0; // Skip through initial nonword stuff. while (tmpcursor.pos() < tmpcursor.par()->size() && ! tmpcursor.par()->isWord(tmpcursor.pos())) { // printf("Current pos1 %d", tmpcursor.pos()) ; tmpcursor.pos(tmpcursor.pos() + 1); ++steps; } // Advance through word. while (tmpcursor.pos() < tmpcursor.par()->size() && tmpcursor.par()->isWord(tmpcursor.pos())) { // printf("Current pos2 %d", tmpcursor.pos()) ; tmpcursor.pos(tmpcursor.pos() + 1); ++steps; } } setCursor(tmpcursor.par(), tmpcursor.pos()); } void LyXText::cursorTab() { LyXCursor tmpcursor = cursor; while (tmpcursor.pos() < tmpcursor.par()->size() && !tmpcursor.par()->isNewline(tmpcursor.pos())) tmpcursor.pos(tmpcursor.pos() + 1); if (tmpcursor.pos() == tmpcursor.par()->size()) { if (tmpcursor.par()->next()) { tmpcursor.par(tmpcursor.par()->next()); tmpcursor.pos(0); } } else tmpcursor.pos(tmpcursor.pos() + 1); setCursor(tmpcursor.par(), tmpcursor.pos()); } // Skip initial whitespace at end of word and move cursor to *start* // of prior word, not to end of next prior word. void LyXText::cursorLeftOneWord() { LyXCursor tmpcursor = cursor; cursorLeftOneWord(tmpcursor); setCursor(tmpcursor.par(), tmpcursor.pos()); } void LyXText::cursorLeftOneWord(LyXCursor & cur) { // treat HFills, floats and Insets as words cur = cursor; while (cur.pos() && (cur.par()->isSeparator(cur.pos() - 1) || cur.par()->isKomma(cur.pos() - 1) || cur.par()->isNewline(cur.pos() - 1)) && !(cur.par()->isHfill(cur.pos() - 1) || cur.par()->isInset(cur.pos() - 1))) cur.pos(cur.pos() - 1); if (cur.pos() && (cur.par()->isInset(cur.pos() - 1) || cur.par()->isHfill(cur.pos() - 1))) { cur.pos(cur.pos() - 1); } else if (!cur.pos()) { if (cur.par()->previous()) { cur.par(cur.par()->previous()); cur.pos(cur.par()->size()); } } else { // Here, cur != 0 while (cur.pos() > 0 && cur.par()->isWord(cur.pos() - 1)) cur.pos(cur.pos() - 1); } } // Select current word. This depends on behaviour of // CursorLeftOneWord(), so it is patched as well. void LyXText::getWord(LyXCursor & from, LyXCursor & to, word_location const loc) { // first put the cursor where we wana start to select the word from = cursor; switch (loc) { case WHOLE_WORD_STRICT: if (cursor.pos() == 0 || cursor.pos() == cursor.par()->size() || cursor.par()->isSeparator(cursor.pos()) || cursor.par()->isKomma(cursor.pos()) || cursor.par()->isNewline(cursor.pos()) || cursor.par()->isSeparator(cursor.pos() - 1) || cursor.par()->isKomma(cursor.pos() - 1) || cursor.par()->isNewline(cursor.pos() - 1)) { to = from; return; } // no break here, we go to the next case WHOLE_WORD: // Move cursor to the beginning, when not already there. if (from.pos() && !from.par()->isSeparator(from.pos() - 1) && !(from.par()->isKomma(from.pos() - 1) || from.par()->isNewline(from.pos() - 1))) cursorLeftOneWord(from); break; case PREVIOUS_WORD: // always move the cursor to the beginning of previous word cursorLeftOneWord(from); break; case NEXT_WORD: lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet\n"; break; case PARTIAL_WORD: break; } to = from; while (to.pos() < to.par()->size() && !to.par()->isSeparator(to.pos()) && !to.par()->isKomma(to.pos()) && !to.par()->isNewline(to.pos()) && !to.par()->isHfill(to.pos()) && !to.par()->isInset(to.pos())) { to.pos(to.pos() + 1); } } void LyXText::selectWord(word_location loc) { LyXCursor from; LyXCursor to; getWord(from, to, loc); if (cursor != from) setCursor(from.par(), from.pos()); if (to == from) return; selection.cursor = cursor; setCursor(to.par(), to.pos()); setSelection(); } // Select the word currently under the cursor when no // selection is currently set bool LyXText::selectWordWhenUnderCursor(word_location loc) { if (!selection.set()) { selectWord(loc); return selection.set(); } return false; } void LyXText::acceptChange() { if (!selection.set() && cursor.par()->size()) return; bv()->hideCursor(); if (selection.start.par() == selection.end.par()) { LyXCursor & startc = selection.start; LyXCursor & endc = selection.end; setUndo(bv(), Undo::INSERT, startc.par(), startc.par()->next()); startc.par()->acceptChange(startc.pos(), endc.pos()); finishUndo(); clearSelection(); redoParagraphs(startc, startc.par()->next()); setCursorIntern(startc.par(), 0); } #warning handle multi par selection } void LyXText::rejectChange() { if (!selection.set() && cursor.par()->size()) return; bv()->hideCursor(); if (selection.start.par() == selection.end.par()) { LyXCursor & startc = selection.start; LyXCursor & endc = selection.end; setUndo(bv(), Undo::INSERT, startc.par(), startc.par()->next()); startc.par()->rejectChange(startc.pos(), endc.pos()); finishUndo(); clearSelection(); redoParagraphs(startc, startc.par()->next()); setCursorIntern(startc.par(), 0); } #warning handle multi par selection } // This function is only used by the spellchecker for NextWord(). // It doesn't handle LYX_ACCENTs and probably never will. WordLangTuple const LyXText::selectNextWordToSpellcheck(float & value) { if (the_locking_inset) { WordLangTuple word = the_locking_inset->selectNextWordToSpellcheck(bv(), value); if (!word.word().empty()) { value += float(cursor.y()); value /= float(height); return word; } // we have to go on checking so move cursor to the next char if (cursor.pos() == cursor.par()->size()) { if (!cursor.par()->next()) return word; cursor.par(cursor.par()->next()); cursor.pos(0); } else cursor.pos(cursor.pos() + 1); } Paragraph * tmppar = cursor.par(); // If this is not the very first word, skip rest of // current word because we are probably in the middle // of a word if there is text here. if (cursor.pos() || cursor.par()->previous()) { while (cursor.pos() < cursor.par()->size() && cursor.par()->isLetter(cursor.pos())) cursor.pos(cursor.pos() + 1); } // Now, skip until we have real text (will jump paragraphs) while (1) { Paragraph * cpar(cursor.par()); pos_type const cpos(cursor.pos()); if (cpos == cpar->size()) { if (cpar->next()) { cursor.par(cpar->next()); cursor.pos(0); continue; } break; } bool const is_bad_inset(cpar->isInset(cpos) && !cpar->getInset(cpos)->allowSpellcheck()); if (cpar->isLetter(cpos) && !isDeletedText(*cpar, cpos) && !is_bad_inset) break; cursor.pos(cpos + 1); } // now check if we hit an inset so it has to be a inset containing text! if (cursor.pos() < cursor.par()->size() && cursor.par()->isInset(cursor.pos())) { // lock the inset! cursor.par()->getInset(cursor.pos())->edit(bv()); // now call us again to do the above trick // but obviously we have to start from down below ;) return bv()->text->selectNextWordToSpellcheck(value); } // Update the value if we changed paragraphs if (cursor.par() != tmppar) { setCursor(cursor.par(), cursor.pos()); value = float(cursor.y())/float(height); } // Start the selection from here selection.cursor = cursor; string lang_code( getFont(bv()->buffer(), cursor.par(), cursor.pos()) .language()->code()); // and find the end of the word (insets like optional hyphens // and ligature break are part of a word) while (cursor.pos() < cursor.par()->size() && cursor.par()->isLetter(cursor.pos()) && !isDeletedText(*cursor.par(), cursor.pos())) cursor.pos(cursor.pos() + 1); // Finally, we copy the word to a string and return it string str; if (selection.cursor.pos() < cursor.pos()) { pos_type i; for (i = selection.cursor.pos(); i < cursor.pos(); ++i) { if (!cursor.par()->isInset(i)) str += cursor.par()->getChar(i); } } return WordLangTuple(str, lang_code); } // This one is also only for the spellchecker void LyXText::selectSelectedWord() { if (the_locking_inset) { the_locking_inset->selectSelectedWord(bv()); return; } // move cursor to the beginning setCursor(selection.cursor.par(), selection.cursor.pos()); // set the sel cursor selection.cursor = cursor; // now find the end of the word while (cursor.pos() < cursor.par()->size() && (cursor.par()->isLetter(cursor.pos()))) cursor.pos(cursor.pos() + 1); setCursor(cursor.par(), cursor.pos()); // finally set the selection setSelection(); } // Delete from cursor up to the end of the current or next word. void LyXText::deleteWordForward() { if (cursor.par()->empty()) cursorRight(bv()); else { LyXCursor tmpcursor = cursor; tmpcursor.row(0); // ?? selection.set(true); // to avoid deletion cursorRightOneWord(); setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos()); selection.cursor = cursor; cursor = tmpcursor; setSelection(); // Great, CutSelection() gets rid of multiple spaces. cutSelection(true, false); } } // Delete from cursor to start of current or prior word. void LyXText::deleteWordBackward() { if (cursor.par()->empty()) cursorLeft(bv()); else { LyXCursor tmpcursor = cursor; tmpcursor.row(0); // ?? selection.set(true); // to avoid deletion cursorLeftOneWord(); setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos()); selection.cursor = cursor; cursor = tmpcursor; setSelection(); cutSelection(true, false); } } // Kill to end of line. void LyXText::deleteLineForward() { if (cursor.par()->empty()) // Paragraph is empty, so we just go to the right cursorRight(bv()); else { LyXCursor tmpcursor = cursor; // We can't store the row over a regular setCursor // so we set it to 0 and reset it afterwards. tmpcursor.row(0); // ?? selection.set(true); // to avoid deletion cursorEnd(); setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos()); selection.cursor = cursor; cursor = tmpcursor; setSelection(); // What is this test for ??? (JMarc) if (!selection.set()) { deleteWordForward(); } else { cutSelection(true, false); } } } void LyXText::changeCase(LyXText::TextCase action) { LyXCursor from; LyXCursor to; if (selection.set()) { from = selection.start; to = selection.end; } else { getWord(from, to, PARTIAL_WORD); setCursor(to.par(), to.pos() + 1); } lyx::Assert(from <= to); setUndo(bv(), Undo::FINISH, from.par(), to.par()->next()); pos_type pos = from.pos(); Paragraph * par = from.par(); while (par && (pos != to.pos() || par != to.par())) { if (pos == par->size()) { par = par->next(); pos = 0; continue; } unsigned char c = par->getChar(pos); if (!IsInsetChar(c)) { switch (action) { case text_lowercase: c = lowercase(c); break; case text_capitalization: c = uppercase(c); action = text_lowercase; break; case text_uppercase: c = uppercase(c); break; } } #warning changes par->setChar(pos, c); checkParagraph(par, pos); ++pos; } if (to.row() != from.row()) postPaint(from.y() - from.row()->baseline()); } void LyXText::transposeChars() { Paragraph * tmppar = cursor.par(); setUndo(bv(), Undo::FINISH, tmppar, tmppar->next()); pos_type tmppos = cursor.pos(); // First decide if it is possible to transpose at all if (tmppos == 0 || tmppos == tmppar->size()) return; if (isDeletedText(*tmppar, tmppos - 1) || isDeletedText(*tmppar, tmppos)) return; unsigned char c1 = tmppar->getChar(tmppos); unsigned char c2 = tmppar->getChar(tmppos - 1); // We should have an implementation that handles insets // as well, but that will have to come later. (Lgb) if (c1 == Paragraph::META_INSET || c2 == Paragraph::META_INSET) return; bool const erased = tmppar->erase(tmppos - 1, tmppos + 1); pos_type const ipos(erased ? tmppos - 1 : tmppos + 1); tmppar->insertChar(ipos, c1); tmppar->insertChar(ipos + 1, c2); checkParagraph(tmppar, tmppos); } void LyXText::Delete() { // this is a very easy implementation LyXCursor old_cursor = cursor; int const old_cur_par_id = old_cursor.par()->id(); int const old_cur_par_prev_id = old_cursor.par()->previous() ? old_cursor.par()->previous()->id() : -1; // just move to the right cursorRight(bv()); // CHECK Look at the comment here. // This check is not very good... // The cursorRightIntern calls DeleteEmptyParagrapgMechanism // and that can very well delete the par or par->previous in // old_cursor. Will a solution where we compare paragraph id's //work better? if ((cursor.par()->previous() ? cursor.par()->previous()->id() : -1) == old_cur_par_prev_id && cursor.par()->id() != old_cur_par_id) { // delete-empty-paragraph-mechanism has done it return; } // if you had success make a backspace if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) { LyXCursor tmpcursor = cursor; // to make sure undo gets the right cursor position cursor = old_cursor; setUndo(bv(), Undo::DELETE, cursor.par(), cursor.par()->next()); cursor = tmpcursor; backspace(); } } void LyXText::backspace() { // Get the font that is used to calculate the baselineskip pos_type lastpos = cursor.par()->size(); LyXFont rawparfont = cursor.par()->getFontSettings(bv()->buffer()->params, lastpos - 1); if (cursor.pos() == 0) { // The cursor is at the beginning of a paragraph, // so the the backspace will collapse two paragraphs into one. // but it's not allowed unless it's new if (cursor.par()->isChangeEdited(0, cursor.par()->size())) return; // we may paste some paragraphs // is it an empty paragraph? if ((lastpos == 0 || (lastpos == 1 && cursor.par()->isSeparator(0)))) { // This is an empty paragraph and we delete it just by moving the cursor one step // left and let the DeleteEmptyParagraphMechanism handle the actual deletion // of the paragraph. if (cursor.par()->previous()) { Paragraph * tmppar = cursor.par()->previous(); if (cursor.par()->layout() == tmppar->layout() && cursor.par()->getAlign() == tmppar->getAlign()) { // Inherit bottom DTD from the paragraph below. // (the one we are deleting) tmppar->params().lineBottom(cursor.par()->params().lineBottom()); tmppar->params().spaceBottom(cursor.par()->params().spaceBottom()); tmppar->params().pagebreakBottom(cursor.par()->params().pagebreakBottom()); } cursorLeft(bv()); // the layout things can change the height of a row ! int const tmpheight = cursor.row()->height(); setHeightOfRow(cursor.row()); if (cursor.row()->height() != tmpheight) { postPaint(cursor.y() - cursor.row()->baseline()); } return; } } if (cursor.par()->previous()) { setUndo(bv(), Undo::DELETE, cursor.par()->previous(), cursor.par()->next()); } Paragraph * tmppar = cursor.par(); Row * tmprow = cursor.row(); // We used to do cursorLeftIntern() here, but it is // not a good idea since it triggers the auto-delete // mechanism. So we do a cursorLeftIntern()-lite, // without the dreaded mechanism. (JMarc) if (cursor.par()->previous()) { // steps into the above paragraph. setCursorIntern(cursor.par()->previous(), cursor.par()->previous()->size(), false); } // Pasting is not allowed, if the paragraphs have different // layout. I think it is a real bug of all other // word processors to allow it. It confuses the user. // Even so with a footnote paragraph and a non-footnote // paragraph. I will not allow pasting in this case, // because the user would be confused if the footnote behaves // different wether it is open or closed. // Correction: Pasting is always allowed with standard-layout LyXTextClass const & tclass = bv()->buffer()->params.getLyXTextClass(); if (cursor.par() != tmppar && (cursor.par()->layout() == tmppar->layout() || tmppar->layout() == tclass.defaultLayout()) && cursor.par()->getAlign() == tmppar->getAlign()) { removeParagraph(tmprow); removeRow(tmprow); mergeParagraph(bv()->buffer()->params, bv()->buffer()->paragraphs, cursor.par()); if (!cursor.pos() || !cursor.par()->isSeparator(cursor.pos() - 1)) ; //cursor.par()->insertChar(cursor.pos(), ' '); // strangely enough it seems that commenting out the line above removes // most or all of the segfaults. I will however also try to move the // two Remove... lines in front of the PasteParagraph too. else if (cursor.pos()) cursor.pos(cursor.pos() - 1); postPaint(cursor.y() - cursor.row()->baseline()); // remove the lost paragraph // This one is not safe, since the paragraph that the tmprow and the // following rows belong to has been deleted by the PasteParagraph // above. The question is... could this be moved in front of the // PasteParagraph? //RemoveParagraph(tmprow); //RemoveRow(tmprow); // This rebuilds the rows. appendParagraph(cursor.row()); updateCounters(); // the row may have changed, block, hfills etc. setCursor(cursor.par(), cursor.pos(), false); } } else { // this is the code for a normal backspace, not pasting // any paragraphs setUndo(bv(), Undo::DELETE, cursor.par(), cursor.par()->next()); // We used to do cursorLeftIntern() here, but it is // not a good idea since it triggers the auto-delete // mechanism. So we do a cursorLeftIntern()-lite, // without the dreaded mechanism. (JMarc) setCursorIntern(cursor.par(), cursor.pos()- 1, false, cursor.boundary()); if (cursor.par()->isInset(cursor.pos())) { // force complete redo when erasing display insets // this is a cruel method but safe..... Matthias if (cursor.par()->getInset(cursor.pos())->display() || cursor.par()->getInset(cursor.pos())->needFullRow()) { cursor.par()->erase(cursor.pos()); redoParagraph(); return; } } Row * row = cursor.row(); int y = cursor.y() - row->baseline(); pos_type z; // remember that a space at the end of a row doesnt count // when calculating the fill if (cursor.pos() < row->lastPos() || !cursor.par()->isLineSeparator(cursor.pos())) { row->fill(row->fill() + singleWidth( cursor.par(), cursor.pos())); } // some special code when deleting a newline. This is similar // to the behavior when pasting paragraphs if (cursor.pos() && cursor.par()->isNewline(cursor.pos())) { cursor.par()->erase(cursor.pos()); // refresh the positions Row * tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() - 1); } if (cursor.par()->isLineSeparator(cursor.pos() - 1)) cursor.pos(cursor.pos() - 1); if (cursor.pos() < cursor.par()->size() && !cursor.par()->isSeparator(cursor.pos())) { cursor.par()->insertChar(cursor.pos(), ' '); setCharFont(bv()->buffer(), cursor.par(), cursor.pos(), current_font); // refresh the positions tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() + 1); } } } else { cursor.par()->erase(cursor.pos()); // refresh the positions Row * tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() - 1); } // delete newlines at the beginning of paragraphs while (!cursor.par()->empty() && cursor.pos() < cursor.par()->size() && cursor.par()->isNewline(cursor.pos()) && cursor.pos() == cursor.par()->beginningOfBody()) { cursor.par()->erase(cursor.pos()); // refresh the positions tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() - 1); } } } // is there a break one row above if (row->previous() && row->previous()->par() == row->par()) { z = rowBreakPoint(*row->previous()); if (z >= row->pos()) { row->pos(z + 1); Row * tmprow = row->previous(); // maybe the current row is now empty if (row->pos() >= row->par()->size()) { // remove it removeRow(row); need_break_row = 0; } else { breakAgainOneRow(row); if (row->next() && row->next()->par() == row->par()) need_break_row = row->next(); else need_break_row = 0; } // set the dimensions of the row above y -= tmprow->height(); tmprow->fill(fill(*tmprow, workWidth())); setHeightOfRow(tmprow); postPaint(y); setCursor(cursor.par(), cursor.pos(), false, cursor.boundary()); //current_font = rawtmpfont; //real_current_font = realtmpfont; // check, whether the last character's font has changed. if (rawparfont != cursor.par()->getFontSettings(bv()->buffer()->params, cursor.par()->size() - 1)) redoHeightOfParagraph(); return; } } // break the cursor row again if (row->next() && row->next()->par() == row->par() && (row->lastPos() == row->par()->size() - 1 || rowBreakPoint(*row) != row->lastPos())) { // it can happen that a paragraph loses one row // without a real breakup. This is when a word // is to long to be broken. Well, I don t care this // hack ;-) if (row->lastPos() == row->par()->size() - 1) removeRow(row->next()); postPaint(y); breakAgainOneRow(row); // will the cursor be in another row now? if (row->next() && row->next()->par() == row->par() && row->lastPos() <= cursor.pos()) { row = row->next(); breakAgainOneRow(row); } setCursor(cursor.par(), cursor.pos(), false, cursor.boundary()); if (row->next() && row->next()->par() == row->par()) need_break_row = row->next(); else need_break_row = 0; } else { // set the dimensions of the row row->fill(fill(*row, workWidth())); int const tmpheight = row->height(); setHeightOfRow(row); if (tmpheight == row->height()) { postRowPaint(row, y); } else { postPaint(y); } setCursor(cursor.par(), cursor.pos(), false, cursor.boundary()); } } // current_font = rawtmpfont; // real_current_font = realtmpfont; if (isBoundary(bv()->buffer(), cursor.par(), cursor.pos()) != cursor.boundary()) setCursor(cursor.par(), cursor.pos(), false, !cursor.boundary()); lastpos = cursor.par()->size(); if (cursor.pos() == lastpos) setCurrentFont(); // check, whether the last characters font has changed. if (rawparfont != cursor.par()->getFontSettings(bv()->buffer()->params, lastpos - 1)) { redoHeightOfParagraph(); } else { // now the special right address boxes if (cursor.par()->layout()->margintype == MARGIN_RIGHT_ADDRESS_BOX) { redoDrawingOfParagraph(cursor); } } } // returns pointer to a specified row Row * LyXText::getRow(Paragraph * par, pos_type pos, int & y) const { if (!firstRow()) return 0; Row * tmprow = firstRow(); y = 0; // find the first row of the specified paragraph while (tmprow->next() && tmprow->par() != par) { y += tmprow->height(); tmprow = tmprow->next(); } // now find the wanted row while (tmprow->pos() < pos && tmprow->next() && tmprow->next()->par() == par && tmprow->next()->pos() <= pos) { y += tmprow->height(); tmprow = tmprow->next(); } return tmprow; } Row * LyXText::getRowNearY(int & y) const { #if 1 // If possible we should optimize this method. (Lgb) Row * tmprow = firstRow(); int tmpy = 0; while (tmprow->next() && tmpy + tmprow->height() <= y) { tmpy += tmprow->height(); tmprow = tmprow->next(); } y = tmpy; // return the real y //lyxerr << "returned y = " << y << endl; return tmprow; #else // Search from the current cursor position. Row * tmprow = cursor.row(); int tmpy = cursor.y() - tmprow->baseline(); lyxerr << "cursor.y() = " << tmpy << endl; lyxerr << "tmprow->height() = " << tmprow->height() << endl; lyxerr << "tmprow->baseline() = " << tmprow->baseline() << endl; lyxerr << "first = " << first << endl; lyxerr << "y = " << y << endl; if (y < tmpy) { lyxerr << "up" << endl; do { tmpy -= tmprow->height(); tmprow = tmprow->previous(); } while (tmprow && tmpy - tmprow->height() >= y); } else if (y > tmpy) { lyxerr << "down" << endl; while (tmprow->next() && tmpy + tmprow->height() <= y) { tmpy += tmprow->height(); tmprow = tmprow->next(); } } else { lyxerr << "equal" << endl; } y = tmpy; // return the real y lyxerr << "returned y = " << y << endl; return tmprow; #endif } int LyXText::getDepth() const { return cursor.par()->getDepth(); }